Can You Still Get Typhoid Fever After Vaccination? What to Know About Immunity

If youre preparing to travel to South Asia, Africa, or parts of Latin America, youve likely been advised to get vaccinated against typhoid fever. But many travellers still have questions, such as: Can you still get typhoid fever after the vaccine? and How long does a typhoid fever vaccine last?

At the 3Q Pharmacy Travel Clinic, we believe in giving you clear, practical informationso you can travel safely and with peace of mind. In this blog, well explain how the typhoid vaccine works, how long protection lasts, and what else you can do to stay protected while abroad.

What is Typhoid Fever?

Typhoid fever is a bacterial infection caused by Salmonella typhi. It spreads through contaminated food and water and is more common in areas with poor sanitation.

Symptoms can include:

• > High fever

• > Headache

• > Fatigue

• > Abdominal pain

• > Constipation or diarrhoea

Without treatment, typhoid can become life-threatening. Fortunately, vaccination is a highly effective way to reduce your riskthough no vaccine is 100% protective.

How Does the Typhoid Vaccine Work?

There are two main types of typhoid vaccines used in the UK:

1. Typhim Vi (injectable)  A single injection, offering protection for up to three years

2. Ty21a (oral)  A course of capsules taken over several days, offering protection for around five years

Both vaccines work by helping your immune system recognise and respond to Salmonella typhi. They reduce the chance of developing the disease if youre exposed during your travels.

However, as with most vaccines, protection isn’t lifelong. So how long does a typhoid fever vaccine last? That depends on which type youve had and how much time has passed since your last dose.

So, Can You Still Get Typhoid Fever After Being Vaccinated?

Yes, it is still possible to get typhoid fever even after being vaccinatedbut the risk is significantly lower. No vaccine offers 100% protection, and this is true for typhoid as well. The vaccine reduces the severity and likelihood of infection, but it cannot fully eliminate your chances of becoming unwell.

Thats why its crucial to combine vaccination with strict hygiene measures when you travel.

We recommend the following:

• > Only drink bottled or freshly boiled water

• > Avoid ice unless youre sure its made from clean water

• > Eat food that is freshly cooked and served hot

• > Avoid raw fruits and vegetables unless you can peel them yourself

• > Wash hands frequently with soap or use sanitiser before eating

Even if youve been vaccinated, poor hygiene in high-risk areas can still expose you to the bacteria.

When Should You Get a Booster?

As a rule of thumb:

Typhim Vi injection  booster required every 3 years if you continue to travel to risk areas

Ty21a oral vaccine  booster needed every 5 years

If youre unsure whether youve had the typhoid vaccine, or its been more than a few years since your last trip, it’s best to check your records or speak to a travel health professional.

At 3Q Pharmacy, we offer travel health consultations to assess your needs, review your vaccination history, and provide boosters when necessary. We also give advice on any other recommended travel vaccines based on your destination.

Why Some Travellers Still Get Typhoid

While the vaccine provides good protection, there are several reasons why some travellers still become ill:

• > Incomplete or missed doses (especially with the oral vaccine)

• > Expired immunity from a vaccine given several years earlier

• > High exposure levels in areas with widespread contamination

• > Lack of hygiene precautions during travel

This is why a comprehensive approach is so important. Vaccination is your first line of defencebut personal precautions are just as vital.

How 3Q Pharmacy Can Help

At 3Q Pharmacy, we provide:

• > Fast, local access to both injectable and oral typhoid vaccines

• > Travel consultations to assess all vaccine and medication needs

• > Booster appointments for returning travellers

• > Practical hygiene advice for staying safe abroad

• > Record-keeping support to track your vaccine history

Whether you’re planning a last-minute break or heading off for a gap year or work assignment, we can help you stay protected with minimal stress.

Book Your Travel Health Appointment Today

If you’re travelling to a high-risk area, don’t leave your health to chance. Whether you’re wondering how long does a typhoid fever vaccine last or you’re due for a booster, our expert team is here to guide you every step of the way.

Contact 3Q Pharmacy today to book your travel health consultationand take the first step towards a safe, healthy journey.

This blog was written on behalf of 3Q Pharmacy by Pharmacy Mentor.